The Type 04020 Control Valvesis linearly controlled, and is perfect for the applications of non-toxic, non-inflammable fluids, gases and vapors. It is made of bronze and the screwed topwork is made of brass. The product comes with an opening indicator. The working temperature of the product ranges from -10°C up to +80°C, -10°C up to +120°C and -10°C up to +160°C with a working pressure of 16 bar, 10 bar and 6 bar respectively.